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1.
In the German legend of Faust. Mephisto was the devil who an alchemsit named Faust sold his soul to, hoping to gain knowledge and power.
Guy 1:Dude, Mephisto isn't originally from DiabloII?
Me: Nope, Neither is Diablo
Guy 1:What!!! Whatever man, your full of it dude.
by ALostSoul April 21, 2004
 
2.
Mephisto is short for Meph·is·toph·e·les
Pronunciation: "me-f&-'stä-f&-"lEz
Function: noun
Etymology: German
: a chief devil in the Faust legend
- Me·phis·to·phe·lian /"mef-&-st&-'fEl-y&n, m&-"fis-t&-/ or Me·phis·to·phe·lean /same, or "me-f&-"stä-f&-'lE-&n/ adjective
by rlaamagh October 21, 2003
 
3.
Fallen Archangel.
Was the apprentice of Michael and was going to be lord of heaven, but lost it to Jesus because of the fall. Some say he left by himself and was not driven out.
Now he is The Duke of Hell, The Judge of the Damned, Lord of Fear and Nightmares, second only to Luciferin the hierarchy of hell
He is The Judge before the gates of Hell. The one you get if Peter doesn't let you in the Pearly Gates.
by nikolapc May 31, 2005
 
4.
That old Mephisto, the one who watches you as you sleep and clicks ancient murmurs in your ears. Constantly plotting, stalking, and breathing on helpless infants at night, his will is to be fulfilled. Be not too hasty to call his name, for he is always listening.
Drunk Bitch: "Mephisto is a bunch of horse shit!"
Mephisto (suddenly appearing): Proceeds to slice her face into a thousand pieces.
by The soul Of genius January 15, 2014
 
5.
The lord of the wrecking.
Dude that guy totally ownes you like Mephisto.
by Dubb October 19, 2003
 
6.
1) A paradox on this world that should refrain from existing. 2) The very reason abortions exist. 3) The Anti-Christ.
Mephisto makes Jesus cry.
by Anonymous February 06, 2004
 
7.
The greatest BF1942 player of all time
BFN Mephisto killed No4noob
noob says : Stupid hacker
by Adam Mephisto Hall***** January 30, 2004